7x^2+2+15x=0

Simple and best practice solution for 7x^2+2+15x=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 7x^2+2+15x=0 equation: 



7x^2+2+15x=0

a = 7; b = 15; c = +2;
Δ = b2-4ac
Δ = 152-4·7·2
Δ = 169
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{169}=13$


$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(15)-13}{2*7}=\frac{-28}{14}
=-2
$


$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(15)+13}{2*7}=\frac{-2}{14}
=-1/7
$

See similar equations:

| 10-2/3(3x-12)=2 | | u+4.48=6.71 | | u-6.61=9.6 | | 3x−8=4x−17 | | w-8.9=7.85 | | 28−6​x​+4=30−3​x | | v+2.29=9.25 | | 2x-5=7-1x | | v=734 | | -3x+7+x=23 | | x(0.03+x)=0.91 | | g-45/8=153/8 | | v/3-11=23 | | 3j=5.4 | | x*x*4-9=142 | | 434=31e | | 2x=7x-24 | | 3(6-x)/2x=6 | | -27-7x=-9-4 | | 6/(x-1)=12 | | (x-3*5)/2=15 | | 4m—3m=5m—28 | | (x-3x5)/2=15 | | 11/3x=-1 | | n^2*n=216 | | 14x-3=3-14x | | 6|9v−1|−3=99 | | 4x+4=2x=13 | | (X+5.2)+x=722.8 | | 34x+8=17 | | V=3x(x)(2x) | | 2+x/6=-4 |

Equations solver categories